Heating-stove.



PATENTED DEC. 18, 1906.

B. G. THOMAS.

HEATING STOVE.

APPLICATION rum) MAR. 7, 1906.

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ENOOH G. THOMAS, OF MARKLE, INDIANA.

HEATING-STOVE.

Specification of Letters Patent.

Patented Dec. 18, 1906.

Application filed March '7, 1906. Serial No. 3041745 To all w/wm, it may concern.-

Be it known that I, ENOGH G. THOMAS, a citizen of the United States, residing at Markle, in the county of Huntington and State of Indiana, have invented certain new and useful Improvements in Heating-Stoves; and I do hereby declare the following to be a full,

- clear, and exact description of the invention,

such as will enable others skilled in the art to which it appertains to. make and use the same.

My invention relates to heating-stoves; and its object is to provide a stove of this character for burning hard coal or coke having a novel arrangement of dampers and fines whereby all non-combustible gases which may accumulate within the dome of the stove will be conducted therefrom, so as not to interfere with the ignition of the combustible gases arising to the dome of the stove.

A still further object is to provide a means whereby the products of combustion can be conveyed through a circuitous passage from the dome to the outlet-pipe.

l/Vith the above and other objects in view the invention consists of a stove having an outlet-tube extendirw downward from the interior of the dome inside of and down the rear wall of the fire-compartment until it gets below the shelf behind the stove, where it passes through the wall of said compartment and there connects with the customary down-flue, which opens into a base-compartment located under the ash-pit. An outlet is located in one wall of this said compartment that has a damper for regulating the passage of gases therethrough, and this out let opens intoanother flue which extends upward to the usual pipe connection and outlet. Another outlet is located within the stove di rectly above the ash-receptacle and opens into this last flue, so that communication from the grate-compartment to the outletpipe' can be made, and this outlet-passage as a check-damper for opening and closing the same. Still another outlet is located within the stove directly above the fire-pot and opens into this last-mentioned flue, so that direct communication from the fire-pot to the outlet-pipe and chimney can be permitted. This last-mentioned outlet has a damper for opening and closing the same.

The invention also consists in further novel construction and combination of parts hereinafter more fully described and claimed.

In the accompanying drawings I have shown the preferred form of my invention.

In said drawings, Figure I is a vert1calsection through a stove in accordance with my invention. Fig. II is a section on line a, a of Fig. I. Fig. III is a section on line b b of Fig. I, and Fig. IV is a section on line 0 c of Fig. I.

Referring to the figures by numerals of reference, 1 is the body of the stove, the same being of any preferred construction having a fire-pot 2 therein, below which are disposed a grate 28, a shaking-ring 29, an apron ashguide 30, a check-damper 26, and an ash-receptacle 3, supported upon a partition or false bottom 4.

Disposed directly above the fire-pot is a feed-tube 5, extending downward from the top of the stove and normally covered by a closure 6, over which extends a ca 7.

Located outside of but attac ed to the stove-body 1 below the usual shelf to which the stovepipe is ordinarily connected are disposed two vertical flues 8 and 9, respectively, said fiues being separated by a partition 10, Evhich extends throughout the lengths of the ues.

Flue 9 communicates at its upper endwith outlet 1 1, to which'the stovepipe is connected, and both of these flues open at their lower ends into a base-compartment 12, formed between the false bottom 4 and the bottom 13. Guide-strips 14 14 are disposed along opposite edges of the opening 32 between compartment 12 and flue 9, and slidably mounted in these guide-strips is a damper 15, having a stem 16, which projects through the Wall of the stove and has a suitable handle 16, whereby the same may be readily manipulated. When the damper is slid inward, it will completely close the opening, With the exception of a small passage formed by reason of the fact that one edge of the damper is recessed, as shown at 17. It is desirable to have this recess so that the communication between compartment 12 and flue 9 Will not be absolutely cut off, thereby enabling any undesirable accumulations of gases to readily pass from said compartment to flue 9 at all times.

A tube 18 extends into the body 1 from the upper end of flue 8, and this tube passes up the rear wall inside of the fire-compartment and terminates at a point Within the dome of the stove-body 1.

A11 outlet-opening 19 is formed in one wall of flue 9 adjacent to the top of the fire-pot 2,

and this opening is adapted to be opened or closed by means of a damper 20, which may be manipulated by a handle 21, extending from the body 1.

In using this stove fluel is fed thereto in the ordinary manner, and any non-combustible gases which may rise to the dome of the stove will enter the tube 18 at figure 24 in the interior of the dome and pass down said tube inside of the firecompartment, to where it connects with flue 8 above the top of the firepot and surrounded by the full heat of said compartment insures a perfect, reliable, and satisfactory draft at all times, and these undiminished heated gases carry with them the full heating capacity of the fire to the basecompartment 12 and at the same time keeping the dome entirely free from all non-combustible elements. By so doing it allows all the ignitible gases the whole dome in which to complete combustion. This means an immense saving in fuel over all other methods. The descending gases passing out of flue 8 and entering the base-compartment 12 circle round in said compartment 12 and pass out of same through the outlet-passage 32 into up-flue 9, thence up the same to outlet 11 into the chimney. This result will al- Ways be obtained even though the damper 15 is closed, because the recess 17 forms an opening of sufficient size to permit the escape of all undesirable gaseous accumulations.

If it is desired to allow the products of combustion to pass directly to outlet 1.1., the opening 19 can be uncovered by swinging the damper 20 outward, and a practically direct passage is thus formed, whereby gases ca flow from the fire-pot 2 through opening 19 to outlet 11. By closing this opening 1 9 and opening the damper 15 all products of combustion must necessarily pass down through the tube 18 and into the base-compartment 12. The

hot gases will thus be retained within the stove for a longer period and will not only heat the body 1, but also the bottom 13, and therefore the stove will thoroughly warm the floor as Well as the surrounding atmosphere.

The check-damper 26, regulating the position of the air passing from grate-compartment 31 to flue 9, may be varied as often as necessary to regulate the desired heat in the stove.

Damper 15 with its recess 17 is intended to be moved much less frequently to suit the changing conditions of the weather outside the house, probably full open in the coldest weather of winter, and the passage for the gases as the weather warms up is to be reduced by a gradual closing of said damper 15 until in April and May it will be advisable to have the passage closed, save the recess 17, which cannot shut it off, this small allo 'ance of a passage-way for the gases being especially useful when it is desired to have low fire, as a fire can be kept in a stove by the use of damper 15 for days without refilling the magazine.

In view of the fact that'it is impossible with with my arrangement of fiues for non-combustible gases to accumulate within the dome of the stove there is absolutely nothing to prevent the consumption of all combustible products, and therefore a great saving in fuel is produced without in any wise diminishing the effectiveness of the stove.

\Vhat I claim as newand useful improvements in flues and regulating dampers for hard-coal heating-stoves, and desire to secure by Letters Patent, is

In a stove, the combination with a fuelchamber, a base-chamber, atube located on the inside of the fuel-chamber communicating with the fuel-chamber near the top thereof, and leading downward inside the fuelchamber to a point above the fire-pot and then to the exterior of the stove, a flue leading from said tube to said base-chamber, and a flue leading from said base-chamber to the exit-pipe, said flue situated exterior of the stove.

In testimony whereof I have signed my name to this specification in the presence of two subscribing witnesses.

ENOCH G. THOMAS.

W'itnesses Josnrn O. HERRAN, WILLIAM ALLEN. 

